Probability stopping criterion for analog decoding of LDPC codes  

作　　者：Zheng Hao Zhang Shuyi Li Lintao Gao Yuan Shao Liwei 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China [2]School of Telecommunication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China [3]Research Institute of Beijing Institute of Technology in Zhongshan,Zhongshan 528400,China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2017年第1期35-39,共5页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(61601027);the Guangdong Provincial Science and Technology Project(2015B010101002)

摘　　要：To detect uncorrectable frames and terminate the decoding procedure early, a probability stopping criterion for iterative analog decoding of low density parity check （LDPC） codes is proposed in this paper. By using probabilities of satisfied checks to detect uncorrectable frames and terminate decoding, the proposed criterion could be applied to analog decoders without much structure modifications. Simulation results show that the proposed criterion can reduce the average number of iterations and achieve a better balance in bit error ratio （BER） performance and decoding complexity than other stopping criteria using extrinsic information.To detect uncorrectable frames and terminate the decoding procedure early, a probability stopping criterion for iterative analog decoding of low density parity check （LDPC） codes is proposed in this paper. By using probabilities of satisfied checks to detect uncorrectable frames and terminate decoding, the proposed criterion could be applied to analog decoders without much structure modifications. Simulation results show that the proposed criterion can reduce the average number of iterations and achieve a better balance in bit error ratio （BER） performance and decoding complexity than other stopping criteria using extrinsic information.

关 键 词：LDPC codes analog decoding early stopping probability stopping criterion 

分 类 号：TN911.22[电子电信—通信与信息系统] TP18[电子电信—信息与通信工程]